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Home  >  275 / 45 21  >  Sonix  >  Sonix 275 / 45 21
Identify the size of your tyre
The exact dimensions of a tyre can be found on the sidewall printed mark. The graphic shows how to read properties and dimensions of the tyre:
 
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SPEED INDEX:
The speed index indicates the maximum speed intended for the tyre. Up to this value, the manufacturer guarantees optimum operation with the appropriate tyre pressure. The maximum speed allowed for this vehicle is given in the vehicle owner's manual; this information can be used to select the appropriate speed index for the tyre. The speed index is the last mark on the sidewall of the tyre.
 
Load Index
Permissible maximum axle load per tyre in kg. To be found in the registration certificate or vehicle registration document or read directly from the tyre (two-digit number). It is permitted to fit a tyre with a higher load index.
 
Driving safety despite puncture
Runflat tyres are puncture-resistant tyres with reinforced sidewalls. This creates the so-called run-flat property. In the event of damage, this allows the vehicle to continue driving up to a distance of approx. 100 km (and even beyond depending on the product) at a maximum speed of 80 km/h, even if the pressure has been completely lost. Run-flat tyres even prevent the tyre rubber from jumping off the rim in the event of a loss of air pressure. A flat tyre is therefore still a flat tyre, but it loses some of its drama. Note: All run-flat tyres are marked with the symbol "RSC" (Runflat System Component) and may only be fitted in vehicles with a functioning air pressure control system!
 
Tyres with increased load capacity
Reinforced tyres are designed for higher loads than normal tyres. They can be identified by the designation 'RF' (reinforced) or also 'XL' or 'Extra Load'. They are used on vans, minibuses, off-road vehicles, etc. However, their mounting alone does not automatically result in higher load capacity but also requires a correspondingly higher air pressure. Furthermore, the load capacity index specified in the vehicle documents continues to apply.
 
Tyres with extra high load capacity
The "C" in the term C tyres stands for "commercial". These tyres are specially designed for commercial vehicles. These can be, for example, lighter trucks, delivery vans, flatbed trucks or panel vans. In other words: vehicles that have to move higher loads at a comparatively lower speed. The multi-ply reinforced C tyres are therefore even more load-bearing than reinforced tyres.
 
Mobility-optimised tyres
A tyre with a sealing layer on the opposite side of the tyre tread. In the event of a puncture (e.g. by a nail), this layer blocks any loss of air, even if the foreign body causing the puncture is still in the tyre. It is not necessary to stop or change the tyres immediately at the roadside.
 
Mobility-optimised tyres
A tyre with a sealing layer on the opposite side of the tyre tread. In the event of a puncture (e.g. by a nail), this layer blocks any loss of air, even if the foreign body causing the puncture is still in the tyre. It is not necessary to stop or change the tyres immediately at the roadside.
 
Tyres optimised for electric vehicles.
Tyre developed for electric vehicles. These tyres can also be used without hesitation on vehicles with other drive systems.
 

Our offer for  Sonix   275/45  21     

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Landsail RapidDragon SUV
Landsail
Landsail
RapidDragon SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 72dB
just  124.28 £
limited stock
Details
Comforser CF710
Comforser
CF710
275/45 ZR21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 71dB
just  127.03 £
available
Details
Roadcruza RA 710
Roadcruza
RA 710
275/45 ZR21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 71dB
just  129.68 £
available
Details
Imperial Ecosport SUV
Imperial
Imperial
Ecosport SUV
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 72dB
just  131.02 £
limited stock
Details
Minerva Frostrack UHP
Minerva
Minerva
Frostrack UHP
275/45 R21 110V XL

Tyre type

 Winter tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> offers over 430 000 tests firsthand - from consumers for consumers.

(1)
Average based on 1 test results  N/A
Grip in dry conditions
Braking in dry conditions
Grip in wet conditions
Braking in wet conditions
Grip in snow
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven33000
(1)

Reifentest.com

just  133.77 £
limited stock
Details
Grenlander Enri U08
Grenlander
Enri U08
275/45 R21 110W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  135.45 £
limited stock
Details
Zeetex HP6000 Eco
Zeetex
Zeetex
HP6000 Eco
275/45 ZR21 110W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  138.08 £
limited stock
Details
Westlake ZuperAce Z-007
Westlake
Westlake
ZuperAce Z-007
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  139.31 £
limited stock
Details
Royal Black Explorer II
Royal Black
Explorer II
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  140.49 £
limited stock
Details
Tracmax X Privilo RS-01 Plus
Tracmax
X Privilo RS-01 Plus
275/45 ZR21 110W XL

Tyre type

 Summer tyres
limited stock
just  141.14 £
limited stock
Details
Unigrip Lateral Force Sport
Unigrip
Unigrip
Lateral Force Sport
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  141.52 £
available
Details
Vredestein Ultrac Vorti+
Vredestein
Vredestein
Ultrac Vorti+
275/45 ZR21 110(Y) XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 71dB
just  142.61 £
limited stock
Details
Mazzini Eco 602
Mazzini
Eco 602
275/45 ZR21 110W XL

Tyre type

 Summer tyres
limited stock
just  143.36 £
limited stock
Details
Sailun Atrezzo ZSR
Sailun
Sailun
Atrezzo ZSR
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 72dB
Client reviews rating:
Client reviews rating

More than 5 billion kilometers. <span><em>Tyretest.com</em></span> offers over 430 000 tests firsthand - from consumers for consumers.

(1)
Average based on 1 test results  N/A
Grip in dry conditions
Braking in dry conditions
Grip in wet conditions
Braking in wet conditions
Grip in snow
Driving comfort
Internal noise level
Tyre wear
Fuel consumption
Kilometers driven220690
20.12.2019fromGareth
Our other car is a kuga and if I was reviewing it on that it would be a differant review however given the car has over 300lb/ft of torque these aren&#39;t the tyres you want on the rears (they were on the car when I bought it). In the wet the traction control light is a permenant fixture if I get spirited and corners can be challenging if taken with some gusto so in short on a focus or an Astra fine but something with a bit of oomph I would pass on them and spend a bit more. You&#39;ll only end up taking them off
(1)

Reifentest.com

just  145.80 £
limited stock
Details
Ilink Snowgripper 2
Ilink
Snowgripper 2
275/45 R21 110H XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip DNoise emissions 71dB
just  146.69 £
available
Details
Chengshan CSC-303
Chengshan
Chengshan
CSC-303
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  147.61 £
limited stock
Details
Sentury Seasonsdragon 2
Sentury
Seasonsdragon 2
275/45 ZR21 110W XL

Tyre type

 All-season tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  149.56 £
available
Details
Fronway Eurus 08
Fronway
Eurus 08
275/45 R21 110W XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 72dB
just  150.82 £
limited stock
Details
Dynamo MSU01
Dynamo
MSU01
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  153.44 £
available
Details
Petlas Explero PT431 H/T
Petlas
Petlas
Explero PT431 H/T
275/45 R21 110Y

Tyre type

H/T Reifen

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  153.55 £
limited stock
Details
GT Radial SportActive 2
GT Radial
GT Radial
SportActive 2
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 69dB
just  153.59 £
available
Details
Zeta Impero
Zeta
Zeta
Impero
275/45 R21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip BNoise emissions 73dB
just  154.62 £
limited stock
Details
Dynamo Street-H Pursuit SUV
Dynamo
Street-H Pursuit SUV
275/45 R21 110W XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance BWet grip ANoise emissions 71dB
just  157.79 £
available
Details
Kumho Ecsta PS71 SUV
Kumho
Kumho
Ecsta PS71 SUV
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  163.29 £
limited stock
Details
Kumho Ecsta PS71 SUV
Kumho
Kumho
Ecsta PS71 SUV
275/45 ZR21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip ANoise emissions 73dB
just  163.94 £
available
Details
Starmaxx Incurro H/T ST450
Starmaxx
Starmaxx
Incurro H/T ST450
275/45 ZR21 110Y RF

Tyre type

H/T Reifen

 Summer tyres
limited stock
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip BNoise emissions 71dB
just  164.38 £
limited stock
Details
Double Star DW02
Double Star
Double Star
DW02
275/45 R21 110T XL

Tyre type

 Winter tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance DWet grip BNoise emissions 73dB
just  165.91 £
available
Details
Momo Toprun M-30 Europa
Momo
Toprun M-30 Europa
275/45 R21 110Y XL

Tyre type

 Summer tyres
available
EU Tyre Label
EU Tyre Label
Roll resistance CWet grip CNoise emissions 73dB
just  168.03 £
available
Details
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